Cachet: Your requirements could not be resolved to an installable set of packages.

[barreeeiroo]

I'm getting this error executing _composer install --no-dev -o_

ubuntu@ip-172-31-7-102:~/Cachet$ composer install --no-dev -o
Loading composer repositories with package information
Installing dependencies from lock file
Your requirements could not be resolved to an installable set of packages.

Problem 1
- The requested PHP extension ext-xml * is missing from your system. Install or enable PHP's xml extension.
Problem 2
- Installation request for laravel/framework v5.2.39 -> satisfiable by laravel/framework[v5.2.39].
- laravel/framework v5.2.39 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
Problem 3
- Installation request for league/commonmark 0.13.4 -> satisfiable by league/commonmark[0.13.4].
- league/commonmark 0.13.4 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
Problem 4
- Installation request for simplesoftwareio/simple-qrcode 1.3.3 -> satisfiable by simplesoftwareio/simple-qrcode[1.3.3].
- simplesoftwareio/simple-qrcode 1.3.3 requires ext-gd * -> the requested PHP extension gd is missing from your system.
Problem 5
- laravel/framework v5.2.39 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- roumen/feed v2.10.4 requires illuminate/support ^5.0 -> satisfiable by laravel/framework[v5.2.39].
- Installation request for roumen/feed v2.10.4 -> satisfiable by roumen/feed[v2.10.4].

To enable extensions, verify that they are enabled in your .ini files:
- /etc/php/7.0/cli/php.ini
- /etc/php/7.0/cli/conf.d/10-opcache.ini
- /etc/php/7.0/cli/conf.d/10-pdo.ini
- /etc/php/7.0/cli/conf.d/20-calendar.ini
- /etc/php/7.0/cli/conf.d/20-ctype.ini
- /etc/php/7.0/cli/conf.d/20-exif.ini
- /etc/php/7.0/cli/conf.d/20-fileinfo.ini
- /etc/php/7.0/cli/conf.d/20-ftp.ini
- /etc/php/7.0/cli/conf.d/20-gettext.ini
- /etc/php/7.0/cli/conf.d/20-iconv.ini
- /etc/php/7.0/cli/conf.d/20-json.ini
- /etc/php/7.0/cli/conf.d/20-phar.ini
- /etc/php/7.0/cli/conf.d/20-posix.ini
- /etc/php/7.0/cli/conf.d/20-readline.ini
- /etc/php/7.0/cli/conf.d/20-shmop.ini
- /etc/php/7.0/cli/conf.d/20-sockets.ini
- /etc/php/7.0/cli/conf.d/20-sysvmsg.ini
- /etc/php/7.0/cli/conf.d/20-sysvsem.ini
- /etc/php/7.0/cli/conf.d/20-sysvshm.ini
- /etc/php/7.0/cli/conf.d/20-tokenizer.ini
You can also run php --ini inside terminal to see which files are used by PHP in CLI mode.
ubuntu@ip-172-31-7-102:~/Cachet$

How can I fix it?

[barreeeiroo]

Hosting on AmazonEC2 t2.micro with Ubuntu16.04

[GrahamCampbell]

Composer lists the problems for you. You need to install the extensions listed.

[barreeeiroo]

Thanks

Fixed executing:
apt get install php-gd php-xml php7.0-mbstring

[jbrooksuk]

:)

[heversonr]

Thanks!

[Ajax30]

Should "apt get install php-gd php-xml php7.0-mbstring" be executed globally or in the project's root directory?

[jbrooksuk]

It won't matter as apt get is a global installation.

[yilmarvegag]

para windows como es el comando?

[yilmarvegag]

help please

[fettymkima]

Your requirements could not be resolved to an installable set of packages.

Problem 1
- The requested PHP extension ext-gd * is missing from your system. Install or enable PHP's gd extension.
Problem 2
- dompdf/dompdf v0.8.2 requires ext-gd * -> the requested PHP extension gd is missing from your system.
- dompdf/dompdf v0.8.1 requires ext-gd * -> the requested PHP extension gd is missing from your system.
- dompdf/dompdf v0.8.0 requires ext-gd * -> the requested PHP extension gd is missing from your system.
- barryvdh/laravel-dompdf v0.8.1 requires dompdf/dompdf ^0.8 -> satisfiable by dompdf/dompdf[v0.8.0, v0.8.1, v0.8.2].
- Installation request for barryvdh/laravel-dompdf ^0.8.1 -> satisfiable by barryvdh/laravel-dompdf[v0.8.1].

To enable extensions, verify that they are enabled in your .ini files:
- /etc/php/5.6/cli/php.ini
- /etc/php/5.6/cli/conf.d/10-mysqlnd.ini
- /etc/php/5.6/cli/conf.d/10-opcache.ini
- /etc/php/5.6/cli/conf.d/10-pdo.ini
- /etc/php/5.6/cli/conf.d/15-xml.ini
- /etc/php/5.6/cli/conf.d/20-calendar.ini
- /etc/php/5.6/cli/conf.d/20-ctype.ini
- /etc/php/5.6/cli/conf.d/20-curl.ini
- /etc/php/5.6/cli/conf.d/20-dom.ini
- /etc/php/5.6/cli/conf.d/20-exif.ini
- /etc/php/5.6/cli/conf.d/20-fileinfo.ini
- /etc/php/5.6/cli/conf.d/20-ftp.ini
- /etc/php/5.6/cli/conf.d/20-gettext.ini
- /etc/php/5.6/cli/conf.d/20-iconv.ini
- /etc/php/5.6/cli/conf.d/20-intl.ini
- /etc/php/5.6/cli/conf.d/20-json.ini
- /etc/php/5.6/cli/conf.d/20-ldap.ini
- /etc/php/5.6/cli/conf.d/20-mbstring.ini
- /etc/php/5.6/cli/conf.d/20-mcrypt.ini
- /etc/php/5.6/cli/conf.d/20-mysql.ini
- /etc/php/5.6/cli/conf.d/20-mysqli.ini
- /etc/php/5.6/cli/conf.d/20-pdo_mysql.ini
- /etc/php/5.6/cli/conf.d/20-phar.ini
- /etc/php/5.6/cli/conf.d/20-posix.ini
- /etc/php/5.6/cli/conf.d/20-readline.ini
- /etc/php/5.6/cli/conf.d/20-shmop.ini
- /etc/php/5.6/cli/conf.d/20-simplexml.ini
- /etc/php/5.6/cli/conf.d/20-sockets.ini
- /etc/php/5.6/cli/conf.d/20-sysvmsg.ini
- /etc/php/5.6/cli/conf.d/20-sysvsem.ini
- /etc/php/5.6/cli/conf.d/20-sysvshm.ini
- /etc/php/5.6/cli/conf.d/20-tokenizer.ini
- /etc/php/5.6/cli/conf.d/20-wddx.ini
- /etc/php/5.6/cli/conf.d/20-xmlreader.ini
- /etc/php/5.6/cli/conf.d/20-xmlwriter.ini
- /etc/php/5.6/cli/conf.d/20-xsl.ini
You can also run php --ini inside terminal to see which files are used by PHP in CLI mode.
am getting this error help please

[GrahamCampbell]

Your requirements could not be resolved to an installable set of packages.

The error message tells you what you need to install:

The requested PHP extension ext-gd

[rami1989]

and how can i install all this file

[support[bot]]

We use the issue tracker exclusively for bug reports and feature requests. However, this issue appears to be a support request. Please use our support channels to get help with the project. You can signup to our Slack channel at https://cachethq-slack.herokuapp.com/